Nail-feed shoe-nailing machines.



J. GROWE.

NAIL FEED FOR SHOE NAILING MACHINES. APPLICATION FILED NOV. 29,-1909.

1,123,252, Patented Jan.5, 1915.

as #4 W 8 Eh I WITNESSES:

V INvENTuR AT HY.

THE NORRIS PETERS CG PHOTO L'THO LVASHINO rcN D c.

JOHN cnown,

Ann TOOL COMPANY, or s'r.

UNITED STA'FE S IATENT OFFICE.

OF ST. JOSEPH, MISSOURI, ASSIGNOEEO SPECIALTY SHOE LJLACI-IINER-YJOSEPH, MISSOURI,

A CORPORATION OF MISSOURI.

NAIL-FEED FOR- SI-IOE-NAILI'NG MACHINES.

Patented Jan. 5, 1915.

Application filed November 29, 1909. Serial Ila-530,324.

To all whom it may concern Be it known that I, JOHN Crown, citizen ofthe United States, residing at St. Joseph, in the county of Buchanan andState of Missouri, have invented certain new and useful Improvements inNail-Feeds for Shoe-Nailing Machines, of which the following is aspecification.

My invention relates to shoe nailing machines and has particularreference to the nail feeding mechanism pertaining to such appliances.

The chief objects of the improvements hereinafter set forth and whichconstitute the subject matter of this application for patent are :-*toprovide a positive and efficient nail feeding means whereby the nailspresented at the outlet of the supply hopper will be transferredconsecutivelyto the nailing sleeve, and to furnish a novel andvpractical mechanism adapted to seize a single nailand convey it out ofthe row of descending nails arranged along the inclined'channel in thehopper, thus breaking the continuity of the nail line and preventing thedeposit of more than one nail at a time in the conduit leading to thecavity of the nailing sleeve.

Other objects of this invention, stated more in detail, are :to providea carrier having an automatic gripping device for seizing and'retainingthe selectednail during its transference; to furnish a positivemechanical movement for dislodging the nail when releasedfrom-the'gripping means, and to furnish means'for arresting the de-'scent of the nails arranged in alineme'nt in the hopper channel, duringthe time of the conveyance of the selected nail to the nail duct orconduit and the return of the-carrier tothe initial position.

Further objects of the invention are to furnish means for unlockingthehopper to permit it to be rotated inorder to bring another receptacleinto operative position, and to provide a stop for limiting the upwardmo'vcment of the carrier on the return stroke of thehammer'.

I accomplish the results above stated and others of minor importance byemploying the apparatus illustrated in the accompanying drawing, whichconstitutes a part o this application, the detailsxof construction beingshowninthe following; views-z above the collar 1 is a side elevation ofmy improved nail feeding device attached to an automatic shoe nailingmachine, only so much of the latter appliance beingshown as will sufficeto indicate the manner of mounting and operating said device; Fig. 2 isa front elevation of the structure illustrated in Fig. 1; Fig. 3 isa topplan view showing the carrier in alinement with the hopper, the positionof said carrier when dropping a nail being shown in dotted outlines;Fig. 4 is a fragmentary View showing the-carrier in vertical section;Fig. 5 is an end elevation of the post and, attachments, and Figs. (Sand7 are a rearelevation of a top plan view, respectively, of the carrierand sleeve.

, Referring to the details of the drawing, the numeral 10-indicates thefixed mast of a shoe nailing machine, .the upper end only being shown,and llthe presser arm having a sleeve 12 slidably mounted on said mastand a hollow head 13 in which a nailing sleeve 14E is removably securedby a set screw 15. Located atone side of the presser arm 11, and havinga slight inclination therewith is a drive or hammer arm 16, provided atthe extremity with a collar 17, arranged above the nailing sleeve 14,the axes of said collar and nailing sleeve being coincident. The saidcollar 17 carries a cylindrical driver or hammer 18, firmly secured inthe collar by a set screw 19. This hammer differs from the ordinaryhammer used in nailing machines of this type in being elongated so thatit projects to a considerable distance above the collar 17, as shown inthe drawing, andis supplied with a head 20, secured on the hammer bodyby a pin 21, which projects upon one side for a purpose that will behereinafter explained.

Slidably mounted upon the hammer body 17 is a nail carriercomprisingasleeve 22 having attached to one side a block 23, preferablycast integral there with, and furnished with forwardly projecting ears24c, which support a movable jaw 25. A screw 26, passing through saidears and jaw, serves as a pivot upon whic the jaw may be moved in amanner to be described. The rear end of the jaw is rectangularin crosssection-and-isprovided at the extremity] .with two transverse ridges or"teeth 27,28; projectingfrom theupper F1 gure i tively to the blocktached' to a pin 37 in described. Projecting is secured thereto andlower tooth 28 groove 29, upper surface of the block 23 when the saidjaw is in its lowest position relative to the said block, in which casethe movable jaw lies in apposition with the upper surface of the block.

The rear face of the block 23 is provided h a vertical nail groove 30,of suitable dimensions to receive a single nail of the largest sizewhich the device is adapted to use. The nail body lies in said grooveand is suspended therein by the head which rests in the said transversegroove 29, and is held firmly therein by the tooth 28 so long as thesaid movable jaw 25 is depressed rela- 23. The jaw 25 is constantlyurged toward its depressed or closed position by a spring pressedplunger 31, which is arranged in an inclined bore 32, extending partlythrough the upper end of the fixed jaw or block 23, as shown in Fig. 4.The rear end of the plunger 31 is re duced to form a beak or stem 33,lying in a reduced axial extension of the said bore, which communicateswith the nail groove 30. A coiled spring 34 surrounds the stem 33 withinthe said bore and urges the front endof the plunger against a pendantfinger 35 attached to the body of the said jaw 25 thus normally tendingto close the jaw down upon the block or main body of the carrier. Thesaid sleeve 22 and attached block 23 are pressed upwardly by a spring36, which surrounds the hammer body between the said sleeve and thecollar 17. The said block is also adapted to swing horizontally aboutthe hammer axis as a center, its movement in one direction beingcontrolled by the spring 36. which has its lower end atupper endengaging the block 23 so that the torsional force of the spring willcarry the block back to its initial position after it has been swungaway from its alinement with the hopper bv mechanism hereinafter forwardat an angle from the movable jaw 25 is a thumb piece 38, pressure uponwhich will open the jaw by rocking it upon its pivot 26.

bracket or post 39 is mounted upon the upper surface of the pressure arm11, and by a screw 40 passing through a flange or side of the lug 42 isflat and projection 46 forming the lower side of the the collar 17, anditsparts are in alin ement,

thus held a short distance below the hammer head 20 during a portion ofthe hammer movement, as shown in Fig. 2, where the ammer arm is seen atits highest position. When the hammer arrives near the upper end of itsstroke the pin 21 will engage the inclined face 46 of an arm 47,projecting upward from the said jaw 25, and move the said armsufficiently to open the jaw, this position of the respective partsbeing shown in Fig. 2. he carrier block 23 has a vertical face 48, theis radial to the axis of the about which'the block swings. side of thepost 39 is mounted a lever 50, pivotally secured by a shouldered screw51. Extending upward and forward from the top of this lever is anarm 52,which is offset from the plane of the lever by a recurved bend or loop53. T wardly at 54, so that it will clear a in 69, projecting from theside of the block 23, when the said block is carried down wardly by theaction of the hammer arm 16. Near its end the arm is furnished with atooth 56, and beyond this the extremity is rounded. Upon the rear outercorner of the block 23 is attached a nail duct 57, the upper portion ofwhich has its frontwall cut away, as shown at 58 in Fig. 5. The lowerend of the duct 57 communicates with the cavity (not shown) in thenailing sleeve by means of a tubular connection 59', the two partsforming what is herein termed the nail conduit.

When the presser arm 11 and the hammer arm 16 are at the upper limit oftheir strokes, the rear face of the carrier block 23 is in appositionwith the discharge end of the supply hopper 60. and the nail groove 30in said rear face will be in alinement with the discharge channel insaid hopper, so that the first or lowest nail in said channel will fallby gravity into the groove 30 when the retaining spring 61, which restsduring a portion of the time upon the heads of the nails in the channelto hold them back, is

' raised. This is effected at the proper time by means of a latch 62,pivoted at 63 to the side of the hopper and resting on a stop pin 64.The said latch is engaged at the point 65 by a corner of the retainingspring 61, and-its forward end has a lug 66 adapted to be engaged by theupper tooth 27 of the movable jaw 25 when the hammer and carrier moveupward, opened by the action of the pin 21, the said latch will beraised, thereby lifting the spring 61 and releasing the Fig. 2, and thisinterlocking nails in the and as the said jaw 25 is ceptacle being shownin the drawing, since asa stop to raise the a it forms no part of thepresent invention. nail, the jaw The operation of the apparatus is asfolthrust th lows :When the hammer is at the upper across the groov 5end of its stroke, as shown in Fig. 2, the out of its seat i carrierwill be held by the torsion of the and cause it to spring36 in the nailreceiving position, with it passes throng the nail groove in alinementwith the nail cavity run in the hopper, the jaw 25 held open byprojected pat 2 the action of the pin 21, and the latch 62 ably to onesi raised by engagement therewith of the tooth of the curve at t 27while the hopper 60 is locked in operasaid pin causes tive position bythe lug 68. The effect of through or ab the engagement of the pin 21with the arm vents the arm fro 25 47 is to slightly raise the jaw 25opening it The movements of the just sufficiently to permit the firstnail to stroke of the hammer are drop within the nail groovef80, but notverse of those above des enough to cause the stem 33 of the plungerglnnln 31 to enter said groove, which, if it did so, Pin 70 fro 50 wouldprevent the entrance of the nail. arm 52 Wlll perm Should it be desiredto shift the revolving the Jaw hopper in order to bring anotherreceptacle prmg 3 into feeding position, the operator places his and thecam face 48 will hold as far as it will go. This will open the yaw 25hack to its initial p to its fullest extent, and cause the stem of 1hed- The fix the plunger to push the nail, if there is one Q fly i h toth in the groove, back into the nail run or 11 g positlon channel of thehopper. By exerting a little wmtl force 0 40 more force upon the thumbpiece, the block p ntlng the block will be swung upon its center, whichis the The h m r c0 axis of the hammer, and as it turns a pin 69 t pm21, eng upon the side of the block 23 will engage the W n h thumb uponthe piece 38 and depresses it as tooth 56 and rock the lever 50,withdrawing t sp ing 61 2m the lug 68 from the nail channel andallowlntO the groove 30.

ing the hopper to be turned to the desired a ng thus cle crl'h oint,where it is again locked by releasing I Claim as 11 the thumb piece 38.If the nailing machine In h mechanism is now operated in the usual fl Ill h a Hall recs uding a plunger,

manner, the arm 16 will descend, the carrier ng means incl member arremaining at rest until the head of the ham ins; m an mer engages theupper end of the sleeve 22. oscillate At the beginning of this movementthe pin also to slide longitudi 21 will release the arm 47 and allow thejaw grasping 55 25 to close down upon the head of the nail in and meansoper the groove 29, clamping it firmly, at the trolling the discharge 0same tlme releasing the latch 62 and perceptacle. mitting the retainingspring 61 to clamp the 2. In a sh heads of the nails in the hopperchannel and nation with a nail receptacle, an hold them back. As thehammer continues .ing means including a pl on its downward movement, theaction of mg means comprising a the cam 14 will be to first engage thesaid plunger an rounded surface 45- and then sw'ingthe block and slidethereon, 22 v away from. the nail receiving position rangedon said 65until the rear face of the block isIclirectly in the action orsaid-plunger linemfe'nt b the comple per in proper ahnement. This formof hopscent of the carrier a per lock is adapted for use with a rotarythe jaw 25 will engag 10 type of hopper, only aportion of such a reinfront of the tooth 56 of the plun e 30 and thus f f it should g of themovem with the end 0 ng at to close rises the carrier to follow, longthe vertical rrier from swinging osition until the notch 43 ed jaw orblock 23 will said initial or nail reer the influence of the 36, the lug4:6 g higher.

it the spri 6 will cause the f the spring from risin miles to ascenduntil the arm 4:7, opens the the latch 62 to raise d permit another '110e nailing machine,

s comprising a about the axis 0 oc nailing machine,

channel so that they are free tomove down front or and covering the openpart of the by gravity toward the outlet The lever 5'0 nail duct 57, soth has an extension 67 which moves in a groove said duct are in abetween the upper part of the nail duct 57 said block has reach 5 andthe post '39 and upon this extension is a ward stroke.

lug 68 which enters the lower part of the arm has complete nail channelin the hopperto lock the hopmovement, and at nail groove 30 an y thetime the d of its downe meantime the presser ts limited downward tion ofthe deon the side of the arm 52 the said arm acting w 25 and release thebeing sufficient to er 31 entirely orce the nail ance to stick, duct 57,whence hthe extension 59 into the iling sleeve.

of the pin 7 O p de of the fulcrum oint of impact line of force to passthe center and thus pre- Although the asses consider- 51, the trend ofthe upon the up cally the rebed. At the bet the release of the f the ailto fall ed my invention, what the combid nail drivof nail feedranged tof said plunger and nally thereon, a nail device mounted on said member,

ated by said de 15 nails from said vice for con the combi- Cl nail drivfnail feedmember embracing dto both, oscillate a nailgrasping devicearnieans controlled by for operating saic l ing means comprising amember arranged to thereon, a nail means operated by said oscillateabout the axis also to slide relatively thereto, means on said mg means"including a oscillate about the axis of said plunger and also to slidelongitudinally thereon, a nail grasping device mounted on saidmember,

and means controlled by the action of said plunger for operating saidgrasping'device. 4. In a shoe. nailing machine, the combination with amovable nail receptacle, and

nail driving means including a plunger, of nail feeding means com risinga member arranged to oscillate about the aXis of said plunger and alsotoslide longitudinally grasping device arranged on said member, meanscontrolled by the action of said plunger for o erating said device,grasping device for controlling the discharge of nails from saidreceptacle, and means controlled by said member for looking the saidreceptacle in operative position. 1 .5. In a shoe n ailing'machine, thecombination with a nail receptacle, and nail driving means including aplunger, of nail feed ing. means comprising a carrier arranged to ofsaid plunger, and

receptacle for controlling the discharge of nails therefrom, and .a nailgrasping memer comprising a movable jawpivoted on said carrier, said jawbeing adapted to operate the said controlling means forthe dis charge ofnails from the receptacle.

In a shoe nailing machine, the combination with a nail receptacle, andnail driving means including a plunger, of nail feeding means comprisinga carrier pivotally supported onsaid plunger, and'arranged to slidelongitudinally thereon," a spring ar ranged to move said carri'er bothhorizontally and vertically on its pivot, a nail gripping devicemountedon said carrier;- and means operated by said device for controlling thedischarge of nails from the recep tacle. I 1

' 7. In a shoe nailing machine, the combination with a nail receptacle,and nail driving means, including a plunger, of nail feeding meanscomprising a carrier mounted upon said plunger and arranged to oscillateand also to slide thereon, aspringarranged to operate the carrier byboth its torsional and expansive action, a nail gripping jaw mounted onsaid carrier. means. on said plunger for operating sa d aw. and meansoperated by said iaw for controlling the discharge of nails from thereceptacle.

8., In a shoe'nailing machine, the combination with a nail receptacle,and nail drivhammer, of 'a nail nation with a nailreceptacle,

. presser arm cooperating with .presser arm,

mounted to slide and swing upon said hamsald presser arm spring on thehopper, a drive carrier arrangedtof slide longitudinally on thesaidhammer and also to swing about the axisjof the hammer.

" 9. In a shoe nailing machine, the combia drive arm, a

hammer carriedby said drive arm, and a said drive arm, of a nail carrierslidably and pivotally mounted on said hammer,

presser arm for sliding said carrier, and

means on said meansfor turning said carrier about the axis of thehammer.

10. In a shoe nailing machine, the combination'with a nail receptacle, adrive arm, a hammer mounted in said arm, and a presser arm, of a blockmounted to slide and turn on said hammer, a movable jaw pivoted on saidblock,'n1eans on said hammer for operating saidjaw, means onsaid-presser arm for turning said block, and means on said hammer forcausing the block to move therewith.

11. In a shoe nailing machine,

. the combination with anail receptacle, a dI'lXG arm,

a hammer mounted in said arm, and a presser arm, of a sleeve mountedtoslide and swing the sleeve, a

on said hammer, a spring for block attached to said sleeve, a movablejaw on said block, means onjsaid hammer for operating said jaw, meanson-said presser arm for swinging said block in one direction,

relatively to said va hammer carried by said arm, a presser arm and anailing sleeve mounted on said of a nail grlpplng devlce mer, meanscarried by for swinging said device in one direction, means carried bythe hammer forswinging the. device in the opposite direction, and meanson the hammer for moving the/said device relative to the nailing sleeve.l3..In a shoe nailing machine, thecombination with a nail hopper, adrive arm, a hammer carried by said arm and a' presser arm, of a nailcarrier adapted to slide and turn upon said hammer, amovable 'ja'w onsaid carrier, means for swinging the carrier into and out of operativeposition relative to the hopper, means on the hammer arranged toreciprocate the carrier, and means for antomatically opening saidmovable jaw when said carrier is at either end of its reciprocatingmovement. l4ai In a shoe nailing machine, the combination with a nailhopper, a nail retaining arm, and a hammer carried by said arm, of 'anail car rier arranged to slide and swing upon said hammer, a movablejaw 'on "said carrier, means on the hammer arranged to' reciproa andmeans on said hammer engaging-said cate said carrier, means for openingsaid jaw when the carrier is at either limit of its reciprocatingmovement, and means on the hopper arranged in the path of said jaw forretracting said nail retaining spring.

15. In a shoe nailing machine, the combination with a nail hopper,having a nail run therein, a nail retaining spring on the hopper, adrive arm, a hammer, and a presser arm, of a nail carrier adapted toslide and swing upon said hammer, sai carrier having a nail grooveadapted to be brought into alinement with said nail run, a movable jawon the carrier adapted to grasp the head of a nail when engaging saidgroove, means for swinging said carrier so as to move the nail grooveinto and out of alinement with the nail run, means carried by the hammerfor reciprocating the carrier, means for opening the jaw when in itslowest position, and means for dislodging the nail from said groove bythe opening movement of said jaw.

16. In a nail feeding device, the combination with a hopper providedwith a discharge aperture, and a nailing sleeve, of a nail conduitcommunicating with the cavity of said sleeve and arranged out ofalinement with the discharge aperture in the hopper, and means forconveying the nails consecutively from the discharge aperture to saidconduit, said means comprising a carrier arranged to rotate on a centercoincident with the axis of the hammer, a nail gripping device mountedon said carrier, and means operated by said device for controlling saiddischarge aperture.

17. In a nail feeding device, the combination with a hopper providedwith a discharge aperture, and a nailing sleeve, of a nail conduitcommunicating with the cavity of said sleeve and having its upper enCopies of this patent may be obtained for five cents each, by addressingthe Washington, .D. G.

open and arranged so as to leave an interval between said open end andthe discharge aperture in the nail hopper, a carrier adapted to conveythe nails from the discharge aperture to the conduit, a nail groove insaid carrier, and a plunger adapted to be rojected into said groove todischarge the nail held therein.

18. In a nail feeding device, the combination with a nail hopperprovided with a discharge aperture, and a nailing sleeve, of a nailconduit communicating at one end with the cavity of the said sleeve andhaving the other end arranged at a distance from the said dischargeaperture, a nail carrier arranged to convey the nails consecutively fromthe hopper to the said nail conduit,

and means for removi g the nail from the carrier when in apposition withsaid conduit, said means comprising a spring held plunger arranged in asuitable aperture in said carrier and adapted to engage a nail held inthe carrier.

19. In a nail feeding device, the combination with a nail hopper, a naildischarge channel therefor, a nailing sleeve, and a nail conduitcommunicating with said sleeve, of means for conveying nailsconsecutively from the discharge channel to the conduit, saidmeans-comprising a member arranged to both oscillate and reciprocate, anail groove in said member, a gripping device for retaining a nail insaid groove, means for dislodging a nail from the groove, and meansoperated by the gripping device for controlling the said dischargechannel.

In testimony whereof I afiix my signature in the presence of twowitnesses.

JOHN CROWE.

Witnesses:

SUSAN LAWRENCE, RALPH O. HAUBER.

Commissioner of Patents,

